Describe the structure and role of DNA in cells

Answers

Answer 1
DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.

Related Questions

7. Compare: Return the arrows to their tray and turn on the Displacement graph. How is the displacement
graph related to the acceleration graph?

Answers

Answer:

to know how many correspond to each tray if we divide the total cookies equally, we need to make a division of the total cookies divided by the amount of trays, that is:

567 cookies / 7 trays = 567/7

= 81

therefore, there will be 81 cookies in each tray

Explanation:

Which are examples of passive transport?

Select all that apply

A) facilitated transport
B) dynamic equilibrium
C) osmosis
D) diffusion

Answers

Answer:

osmosis.

Hope it helps you.

List three stimuli plants can respond to and which are found in their environment

Answers

Answer:

Plants, however, are rooted in place and must respond to the surrounding environmental factors. Plants have sophisticated systems to detect and respond to light, gravity, temperature, and physical touch.

hope this helps:)

HELP.
the ending for the top is (if false correct the. then so on) (complementary dna strand for the next) will mark brainlest! ​i couldn't fit all the words on here since its a paper

Answers

Answer:

1. True

- Those are compounds

2. False

-They are actually polar molecules

3. True

-Acids are molecules that give away a type of subatomic particle

4. False

-While they are usually the same, it is not necessary to have equal protons and neutrons. However, the ratio of electrons to protons is always equal. An extra proton in an atom makes a new element and an extra neutron creates an isotope.

5. False

-An isotope is an atom that has gained an extra neutron.

6. True

-Oxygen is more electronegative than most of the halogen elements.

7. True

-Cellulose and starch are both polymers made from a glucose monomer.

8. True

-During DNA replication both strands that make up the double helix are used as a template that new strands copy.

9. True?

- I think the question is referring to a codon/nucleotide triplet, because each base cant specify a single amino acid and nucleotide triplets are made up of three nucleotide bases so id say true.

10. True

-Side chain groups vary in size, shape, charge, hydrophobicity, and reactivity, which makes them unique.

Explain how the interaction of the Sun, the atmosphere, and the oceans produce winds.

Pls help I am giving brainliest ( science not biology )

Answers

Explanation:

The sun heats the air leading to warm air. the warm air rises thus makes the cooler air from the surroundings to replace it. This leads to creating wind . This same process applies for ocean currents.

The sun heats water which make warm water come to the surface of the ocean thus replacing it with cooler water leading to ocean currents.

The image shows a vulture soaring over a rocky cliff. The arrows model the different ways energy moves between the sun, atmosphere, and geosphere.

Match each type of energy transfer to the arrows shown in the image. Describe how energy transfer helps the vulture soar above this rocky cliff.

Answers

Given what we know about the way energy moves through the Earth, we can confirm that the vulture uses the hot air currents that result from this movement of energy to soar above the cliff.

The energy from the sun travels through the atmosphere, then into the soil where it is absorbed. The soil then radiates the heat back out into the atmosphere.

Given that hot air rises, this radiated heat causes the formation of hot air currents that the vulture then uses to glide upwards in a circular motion.

The vulture planes over the hot air currents with its wings at an angle to climb, it goes higher the further it wishes to travel given that once at the desired height, it glides downward towards its destination.

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why is water not advisable for cleaning a microscope?

Answers

Do not use water, alcohol or acetone as the oil is insoluble to these solvents. To remove other oily substances, i recommend using the detergent called Wisk and prepare a solution of 1 part Wisk to 100 parts water I usually use it . Hope it helps

Is the world flat or round explain

Answers

Answer:

Round

Explanation:

we have pictures from outer space to prove it

Round there proof to be shown

Classification of they 8 kingdoms

Answers

Answer:

1) Monera

2) Protista

3) Fungi

4) Plantae

5) Animalia

plz hurry ppppppppppppppppppppplllllllllzzzzzzzzzzzzzzz

Answers

Answer:

what do you need help with.

Explanation:

Suppose a city (call it Green City) decides to increase the number of electric vehicles being driven. How does Green City's decision to increase the number of electric vehicles fulfill each sphere of sustainability?

Answers

uejen3bebdbd dbxbanammammwnedbdni

Explanation:

vebrnrjekeme d f. fndnemw

I need help with modeling a carbon cycle, do you mind helping me? :)


Will mark brainliest :D

Answers

Explanation:

The Carbon Cycle

The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle.

Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.

Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.

Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.

Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.

Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But since the start of the Industrial Revolution about 150 years ago humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit. The atmosphere has not held this much carbon for at least 420,000 years according to data from ice cores. The recent increase in amounts of greenhouse gases such as carbon dioxide is having a significant impact on the warming of our planet.

Carbon moves through our planet over longer time scales as well. For example, over millions of years weathering of rocks on land can add carbon to surface water which eventually runs off to the ocean. Over long time scales, carbon is removed from seawater when the shells and bones of marine animals and plankton collect on the sea floor. These shells and bones are made of limestone, which contains carbon. When they are deposited on the sea floor, carbon is stored from the rest of the carbon cycle for some amount of time. The amount of limestone deposited in the ocean depends somewhat on the amount of warm, tropical, shallow oceans on the planet because this is where prolific limestone-producing organisms such as corals live. The carbon can be released back to the atmosphere if the limestone melts or is metamorphosed in a subduction zone.

(c) Joseph puts a small amount of water into a flat dish in Diagram 1.

Diagram 1

He then leaves the dish outside in the warm sunshine. After a while the water disappears. Explain what happens to the water particles.​

Answers

the water particles evaporate. this is because heat increases the kinetic energy of molecules. causing them to become lighter and rise to the top of the liquid. further heat then breaks the bonds between the water molecules hence allowing them escape.

what are two of the main ideas of the cell theory​

Answers


Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells

_____ refers to a trait that is controlled by multiple interacting genes,
and sometimes the environment as well.
A. Polygenic inheritance
B. Gene loci
C. Epistasis
D. Multiple Alleles

Answers

Answer:

A

Explanation:

polygenic inheritance

(Please hurry; 100 points)
What is the relationship between ribosomes and rough endoplasmic reticulum (ER)?

Rough ER produces the polypeptide chains that ribosomes need to make protein.
Rough ER is the subunit of ribosomes that makes proteins
Ribosomes attached to rough ER make proteins that the rough ER then transports around the cell
Ribosomes transport proteins made by rough ER to the Golgi apparatus.

Answers

Answer:

Ribosomes attached to rough ER make proteins that the rough ER then transports around the cell

Explanation:

Trust me i got you

Ribosomes attached to rough ER make protein that the rough ER then transports around the cell.

What is rough Endoplasmic reticulum?

Rough endoplasmic reticulum (RER), series of associated leveled sacs, part of a nonstop film organelle inside the cytoplasm of eukaryotic cells, that assumes a focal part in the blend of proteins. The unpleasant endoplasmic reticulum (RER) is so named for the presence of its external surface, which is studded with protein-orchestrating particles known as ribosomes.

This element separates it hastily and practically from the other significant sort of endoplasmic reticulum (emergency room), the smooth endoplasmic reticulum (SER), which needs ribosomes and is associated with the union and stockpiling of lipids. RER happens in both creature and plant cells.

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I WILL GIVE YOU BRAINLIEST
what are the cells labelled B called?
and how do root hair cells differ from the cells labelled B​

Answers

Answer:

The cells labeled B are called the "photosynthetic parenchyma"

Explanation:

the root hair cells differ from the photosynthetic parenchyma only by its function

no chloroplasts / chlorophyll in (root hair cells) ;

root hair cells are not column shaped ;

(root hair cells) have long protrusion / extension / larger surface area ;

Easy question :D

What are 3 facts about a alligator?

hehe

Answers

Explanation:

1:Alligators eat their young. ...

2:An alligator's stomach can dissolve bones. ...

3:Alligators have antibiotic blood.

Is it alive? (gives 15 points!)

A growing potted plant

A tall skyscraper

Pumpkin seeds in the ground

An empty turtle shell

A synthetic rubber band

A metamorphic rock

Baker's yeast

Dried tea leaves used for tea

Tree with no leaves on it in winter

Answers

Answer:

yes

no

yes

no

no

no

yes

no

yes

Explanation:

Answer:

A growing potted plant, Pumpkin seeds in the ground, Baker's yeast

Tree with no leaves on it in winter

Explanation:

True or false : Las Vegas averages 4 inches of rain per year

Answers

Answer:

Las Vegas usually averages just than 4.2 inches of rain in a year.

So,It is true

____________________________________ use reduced, preformed organic molecules (usually from other organisms) as carbon sources, obtain energy from the oxidation of organic compounds, and use reduced organic compounds as their electron source.

Answers

Answer:

Heterotrophs

Explanation:

Heterotroph, in ecology, is an organism that consumes other organisms in a food chain. They acquire their energy by the controlled breakdown of preexisting organic molecules, or food.

¹All heterotrophs, use organic materials as their sole source of carbon. Heterotrophs use preformed organic compounds as their source of carbon. (Source: Brittanica)

Metabolic cycles in general—the extraction by organisms of useful ²energy and food molecules from environmental source material—can be described in terms of oxidation-reduction reactions

Heterotrophs can be organotrophs or lithotrophs. Organotrophs exploit reduced carbon compounds as electron sources, like carbohydrates, fats, and proteins from plants and animals. On the other hand, lithoheterotrophs use inorganic compounds, such as ammonium, nitrite, or sulfur, to obtain electrons.

Cephalopods dwell in ___.
a.
ponds
b.
oceans
c.
lakes
d.
rivers

Answers

Answer: b. oceans

Cephalopods dwell in oceans

Answer:

b.oceans

Explanation:

explain why are auxins added to the agar​

Answers

Answer:

Auxins are added to the agar because Auxins control the growth of plants by promoting cell division and causing elongation in plant cells.

Hope it is helpful....

Hi i need help with this, and i apologize if i got the subject wrong above. Thank you in advance :)

Multiple choice:

1. Which among the following statements is NOT true about the main functions of the human respiratory system?

a. It maintains the acid level of the body.
b. It is responsible for respiration.
c. It gives off oxygen and take in carbon dioxide.
d. It gives off carbon dioxide and take in oxygen.

2. What organs comprise the respiratory system?

a. Bronchioles, alveoli, capillaries
b. Larynx, pharynx, esophagus, windpipe
c. Trachea, epiglottis, bronchi, bronchioles
d. Throat, windpipe, voice box, nasal cavity

3. Why do gym instructors or physical education teachers instruct those who exercise to breathe deeply?

a. Deep breathing allows the body to inhale more carbon dioxide.
b. Deep breathing allows the body to take in more C02
c. Deep breathing allows the body to intake more oxygen.
d. Deep breathing allows the body to take out oxygen.

4. Which among the following choices below is the right pathway of oxygen from the lungs to the body tissues?

a. Alveoli-blood stream-RBC-tissues
b. Alveoli-RBC-bloodstream-tissues
c. RBC-alveoli-bloodstream-tissues
d. RBC-bloodstream-tissues

5. Levi’s doctor advised him to limit his intake of foods that are high in fat. The doctor explained that a high-fat diet could result in the clogging of the artery walls. How could this affect the circulation?

a. The clogging of artery walls inhibits circulation.
b. It is easier for the blood to pass through.
c. It will prevent blood clotting.
d. It will initiates a continuous flow of blood.

Answers

Answer:

1. c

2. a

3. c

4. a

5. a

Explanation:

hope they're all right

Pls help meee! (I put the questions of the picture)

Answers

Answer:

Carbohydrates

Explanation:

Carbohydrates are energy-rich compounds made from carbon, hydrogen, and oxygen.

Plants and animals use carbohydrates. Cells use carbohydrates to get and store energy.

Plants contain cellulose, a carbohydrate, which gives them a rigid structure.

Which of the following is true of the Gulf Stream

Answers

The statement that is true of the Gulf Stream is A.It is a warm current in the Atlantic Ocean.

Gulp Stream helps to  transport warm water which are water that is of moderate temperature from the Gulf of Mexico to  Atlantic Ocean.

Therefore Gulf Stream is of paramount to global

warming as it help to provide fairly or moderate temperatures to nearby  areas.

Inconclusion The statement that is true of the Gulf Stream is A.It is a warm current in the Atlantic Ocean.

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A placebo is a fake treatment that mimics the experience of the experimental group.
true
false

Answers

Answer:

true

Explanation:

Doctors (or scientists) usually use this to make sure people aren't lying about the experience.

For example, some people might expect that if they take ibuprofen or Tylenol, they won't feel as much pain, so they might make themselves believe that they aren't feeling said pain. If you use a placebo group, you are less likely to have situations like that occur, and so your data becomes more accurate.

Why do living things need water, food, and space to live? To maintain homeostasis.

Answers

1.)Food- Food gives organisms energy and the raw materials needed to carry on life processes. Organisms use nutrients from food to replace cells and build body parts.

2.)Water- You could only survive for about three days without water. You get water from the fluids you drink and the food you eat.

3.)Air- Air is a mixture of several different gases, including oxygen and carbon dioxide. Most living things use oxygen in the chemical process that releases energy from food. Oxygen may come from the air or may be dissolved in water.

4.)Habitat- All organisms need a place to live that contains all of the things they need to survive. Some organisms, such as elephants, require a large amount of space. Other organisms may live their entire life in one place.

Explain why probiotics can be helpful to humans. Be sure to include a description of possible positive and negative effect of the use of antibiotics by humans.”

Answers

Answer:

Probiotics are made up of good bacteria that helps keep your body healthy and working well. This good bacteria helps you in many ways, including fighting off bad bacteria when you have too much of it, helping you feel better. Probiotics are part of a larger picture concerning bacteria and your body (your microbiome).

Explanation:

In the following pedigree showing the transmission of Cystic Fibrosis, an
autosomal recessive condition, what must the genotype of the indicated woman
be?

A: FF

B: Ff

C: ff

D: cannot determine


*red circle is affected female*
*blue circle is normal female*
*red square is affected male*
*blue square is normal male*

Answers

Ff or FFim assuming. since shes normal.

In the pedigree showing the transmission of Cystic Fibrosis, the genotype of the marked woman will be FF or Ff. Thus, options A and B are correct.

What is a pedigree?

Pedigree represents the heritable phenotypic trait in the form of charts and diagrams. Cystic Fibrosis disease is inherited by the autosomal recessive alleles and is possible only if the genotype is ff.

The genotype for the woman being normal should not have recessive alleles and only can be heterozygous or purebred dominant. It is possible only if the genotype is Ff and ff.

Therefore, the genotype of the indicated woman will be Ff and ff.

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